import java.util.concurrent.atomic.AtomicInteger;

public class demo12 {
    public static AtomicInteger count=new AtomicInteger(0);
    public static void main(String[] args) throws InterruptedException {
        Thread t1=new Thread(()->{
            for (int i = 0; i < 5000; i++) {
                count.getAndIncrement();//count++
                /*
                 count.getAndDecrement();
                 count.incrementAndGet();
                 count.decrementAndGet();
                 */
            }
        });
        Thread t2=new Thread(()->{
            for (int i = 0; i < 5000; i++) {
                count.getAndIncrement();
            }
        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println(count.get());
    }
}
